<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:10pt"><div>Hi,<br><br>thanks for reply. What I need is to show the scalar field using colors (through a lookup table) on a polygonal surface. If I'm not wrong with vtkGlyph3D you cannot achieve this, am I right? Somebody have tried to extend vtkOpenGLTexture class to support 3D texture? Any hints on how I can do it? Alternatively I can render this polygonal surfaces using OpenGL directly.... I can mix vtk rendering with direct OpenGL commands?<br><br>Thanks,<br><br>- AGPX<br></div><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">Da:</span></b> Jérôme <jerome.velut@gmail.com><br><b><span style="font-weight:
bold;">A:</span></b> AGPX <agpxnet@yahoo.it><br><b><span style="font-weight: bold;">Cc:</span></b> vtk vtk <vtkusers@vtk.org><br><b><span style="font-weight: bold;">Inviato:</span></b> Dom 14 marzo 2010, 10:55:36<br><b><span style="font-weight: bold;">Oggetto:</span></b> Re: [vtkusers] How to show a 3D scalar dataset on a polygon?<br></font><br>Hi,<br>My understanding is that you have a 3D vector defined at each point of your volume. If I am not wrong, you may want to use vtkGlyph3D. <br><br>HTH<br>Jerome<br><br><div class="gmail_quote">2010/3/14 AGPX <span dir="ltr"><<a rel="nofollow" ymailto="mailto:agpxnet@yahoo.it" target="_blank" href="mailto:agpxnet@yahoo.it">agpxnet@yahoo.it</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><div>Hi,<br><br>
I have a volume dataset of scalars that represent an electromagnetic field. I need show this field on a set of polygon. This could be solved easily IF vtk support 3D texture, but very sadly 3D textures aren't supported. There's another way to show the field on the polygons?<br>
<br>Please help, I'm stucked! Thanks.<br><br>- AGPX<br></div>
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